In light of everything we've heard today, it's hard to see what arguments you could make in favour of imposing a moratorium that wouldn't be permanent. For instance, the arguments used to justify distrust of China won't go away after the crisis.
How could anyone justify amending the act temporarily because of the crisis using arguments based on things that are going to be around basically forever? From what I understand, the situation in China won't be going away any time soon. The regime looks pretty secure. I don't really see any way of making this meaningful unless it's permanent.